225304242 has 32 divisors (see below), whose sum is σ = 475065600. Its totient is φ = 71037648.

The previous prime is 225304217. The next prime is 225304253. The reversal of 225304242 is 242403522.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102309 + ... + 104487.

It is an arithmetic number, because the mean of its divisors is an integer number (14845800).

Almost surely, 2^225304242 is an apocalyptic number.

225304242 is an abundant number, since it is smaller than the sum of its proper divisors (249761358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225304242 is a wasteful number, since it uses less digits than its factorization.

225304242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 225304242 is about 15010.1379740494. The cubic root of 225304242 is about 608.4942185009.

Adding to 225304242 its reverse (242403522), we get a palindrome (467707764).

The spelling of 225304242 in words is "two hundred twenty-five million, three hundred four thousand, two hundred forty-two".